Recipe: Printing on terminal

Quotes
======
user@host:~$ echo "Welcome to Bash"
Welcome to Bash

user@host:~$ echo  Welcome to Bash
Welcome to Bash

user@host:~$ echo  'Welcome to Bash'
Welcome to Bash

user@host:~$ printf "Hello world"
Hello world

! and double quoting
====================
user@host:~$  echo "Hello world !"
bash: !": event not found

Fix for !
=========
user@host:~$ echo 'Hello world !'
Hello world !

user@host:~$ echo Hello world !
Hello world !

Escape sequence
================
user@host:~$ echo -e "1\t2\t3"
1	2	3


Scripts
=======
printf.sh